It's an implied promise when someone announces they are adapting some beloved work that there will be some level of faithfulness to the source material. That is

It's an implied promise when someone announces they are adapting some beloved work that there will be some level of faithfulness to the source material. That is why many people pay to see it, and they have a right to be disappointed when that promise is unfulfilled. No it is not required or even possible for it to be 100% faithful, but it's ridiculous to say an adaptation should not be compared to the original. "Don't act offended by this movie of bacon cooking that is my adaptation of Casablanca. What did you expect it be exactly the same?"